JP3141083B2 - Ecosystem conservation block and construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block for providing a habitable space for aquatic organisms, especially aquatic insects, as a block installed on a riverbed or a slope such as a river or a shore, and a construction method thereof.

[0002]

2. Description of the Related Art Conventional revetment concrete blocks are:
And have in dense concrete, on its surface and inside were those homogeneous without holes or voids. Since the river was covered with such a block, there is no space between the connected blocks as well as the surface of the block, so there is no space for aquatic organisms, etc. Is changing. Also, because plants can not thrive,
It deprived the natural landscape and environment of the river.

[0003]

[Problems to be Solved by the Invention] Rivers with a lot of rain and rapids
In Japan, where there are many, to prevent flooding of rivers due to heavy rain,
Sheltered with concrete blocks to prevent disasters.
The tractive force during the flood was extremely large, and therefore, the quality of the concrete block was required to be solid and massive. By arranging such a strong concrete block over the entire cross section of the river, it has been able to prevent landslides and collapse of embankments against floods and heavy rains caused by frequent typhoons, thus protecting human lives. But on the other hand,
Since the river crossed the river with concrete blocks, the habitat of various creatures living in the river was lost. Water is indispensable for living things, and for aquatic organisms, the space formed by the accumulation of rubble on the riverbed was an essential element as a habitat space. These habitats have been robbed of concrete block seawalls, resulting in a river without creatures. The present invention restores such an inorganic river to its original, lively river by using a porous concrete block on the outer surface to regenerate an environment where aquatic organisms and plants can thrive, and using the inside as ordinary concrete as a seawall. The strength is maintained.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention has been proposed in order to solve the above-mentioned disadvantages .
Except for one side, replace the other side with a porous concrete
After filling with hollow concrete, fill the hollow with ordinary concrete
And these are cured and integrated .
In addition, one-sided blocks of any shape
The remaining surface except for the porous core of a certain thickness prepared in advance.
After assembling with a concrete plate, the normal
Concrete is filled, these are hardened and integrated . Further, a porous concrete plate is adhered to each outer surface of the ordinary concrete block formed in a three-dimensional shape. Furthermore, a large number of ecosystem preservation blocks of any one of the above-described configurations are laid from the riverbed or from the riverbed to the slope, and are interconnected to provide a habitat for aquatic organisms in the underwater part. The upper part of the water is used as a vegetation base to regenerate the natural environment by growing plants. The above-described porous concrete formed in a hollow box shape with one side opened may be formed in advance integrally as shown in FIG. 1 or separately as shown in FIGS. 3 and 4. May be assembled to form a box shape.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A block according to the present invention is a block having an arbitrary shape such as a rectangular parallelepiped, a cube or a sphere.
The outer surface is made of porous concrete of a certain thickness.
The interior is usually made of concrete. Since porous concrete is inferior to ordinary concrete in strength and resistance to frost damage in cold regions, there is a risk that manufacturing all the revetment concrete blocks with porous concrete will not fulfill the functions required as revetment. Therefore, the function for preserving ecosystems such as aquatic organisms and plants is covered by porous concrete with a certain thickness on the surface, and the original function of revetment is that of ordinary concrete filled inside. In this way, a functional solution is attempted. In addition, even if the porous concrete on the surface is broken by the freeze-thaw action, the ordinary concrete in the inner part performs its original revetment function. It is not economical to manufacture all the large revetment blocks with porous concrete, and it is only necessary to use porous concrete as thick as aquatic organisms can use. According to the experiment, since the aquatic insects were lurking at a depth of about 20 to 30 mm from the surface, the thickness of the porous concrete on the outer surface was 5 to 5 depending on the expected aquatic insects or plants. What is necessary is just to form about 25 cm.

[0006] Porous concrete is manufactured by kneading water with cement and gravel as main materials. Since there is no fine-grained sand to fill between coarse aggregates, continuous concrete gaps are formed after hardening of the concrete. The porous concrete having is formed. The particle size of the aggregate used is large and small, for example,
No.4 crushed stone (20-40mm), No.5 crushed stone (13-20m
m), No. 6 crushed stone (5-13 mm), No. 7 crushed stone (2.5-
5 mm) or the like, but these may be used alone or in combination. The strength of porous concrete varies depending on the particle size of the material used, and the strength decreases as the particle size increases. Therefore, since high strength is required at the place of use, for example, at a rapid flow portion, a water contact portion, or the like, a smaller particle size is better. However, for aquatic organisms such as aquatic insects, large pores are favorable conditions for the habitat, and therefore, a particle size as large as possible is used. According to the experiment, the relationship between the aggregate particle diameter and the pore diameter was as shown in the following Table 1.

[0007]

[Table 1]

[0008]

Embodiment 1 FIGS. 1 and 2 show a blower according to Embodiment 1 of the present invention.
This block 20 shows one side.
An open, hollow box-shaped porous concrete block
The lock 21 and the porous concrete block 21
Ordinary concrete filled into the hollow part and hardened integrally
Port 22.

[0009]

Embodiment 2 FIGS. 3 and 4 show a blower according to Embodiment 2 of the present invention.
Shows the click 30, the block 30, the porous concrete slab 31 of a thickness prepared in advance, was placed as shown in FIG. 5, the box-shaped body excluding the one side assembled this block Is formed , and ordinary concrete 32 is filled from its open part and hardened.
You.

[0010]

Third Embodiment FIGS. 5 and 6 show a blower according to a third embodiment of the present invention.
The block 40 has a structure in which a porous concrete plate 42 having an appropriate thickness is arranged and attached to each outer surface of a cubic ordinary concrete block 41.
It has become.

[0011]

[Embodiment 4] Fig. 8 shows ecological conservation according to Embodiment 4 of the present invention.
It shows the construction method of the block for
Any one of the blocks 20 and 3 of the configuration of the first to third embodiments
By laying and connecting a large number of 0,40 from the riverbed or from the riverbed to the slope, it provides an aquatic habitat in the underwater area, and the upper part of the water makes the vegetation flourish as a vegetation base .
It is obtained by sea urchin.

Since the present invention has the above-described structure, it is arranged in a large number on a slope or a riverbed of a river or the like, buried in the inside of a block, abuts an annular portion protruding from a side surface, and a connecting bracket is attached to the annular portion. It is inserted and connected to each other.

[0013]

According to the present invention, the surface of the block is made of porous concrete, but the inside is usually made of concrete, so that a strong seawall can be constructed as a seawall. In addition, since the outer surface of the block is porous concrete, countless voids and spaces are formed, and as shown in FIG. When algae and aquatic organisms thrive, insects inhabit and feed on fish, and various creatures are actively bred, and lively animals and plants are active in inorganic and inactive rivers until now. River can be regenerated.
Also, because the outer circumference is made of porous concrete,
By passing water through the voids in the outer peripheral portion, excellent functions such as purifying action are exhibited, and since only the outer peripheral portion is made of porous concrete, it is possible to reduce the cost.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a block according to a first embodiment of the present invention.

FIG. 2 is a sectional view thereof.

FIG. 3 is an exploded perspective view of a porous concrete plate forming the outside of the block according to the second embodiment of the present invention.

FIG. 4 is a perspective view of the assembled state.

FIG. 5 is a sectional view of a block according to a second embodiment of the present invention.

FIG. 6 is an exploded perspective view of a block according to a third embodiment of the present invention.

FIG. 7 is a perspective view of a block according to a third embodiment of the present invention.

FIG. 8 is a sectional view showing an example of a construction state of a block according to the present invention.

FIG. 9 is an enlarged view showing an example of an aquatic insect living on the surface of a block according to the present invention.

[Explanation of symbols]

20 ... block, 21 ... porous concrete plate, 22 ...
Ordinary concrete, 30 ... block, 31 ... ordinary concrete, 32 ... porous concrete plate, 40 ... block, 41 ... ordinary concrete, 42 ... porous concrete plate.

Continuation of the front page (72) Kunihiko Matsumoto 1-8-8 Minami 1-jo Nishi, Chuo-ku, Sapporo City Inside Kyowa Concrete Industry Co., Ltd. (56) References JP-A-7-305324 (JP, A) JP-A-10 −280362 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02B 3/14 A01G 1/00 301 A01K 61/00 313

Claims (4)

(57) [Claims] 1. A three-dimensional block having an arbitrary shape.
And remove the remaining surface, excluding one surface, to a porous concrete
After forming with REET, ordinary concrete is put in the hollow part
Filled, cured and integrated
Ecosystem conservation block. 2. A three-dimensional block having an arbitrary shape.
And remove the remaining surface, excluding one surface, to a certain thickness prepared in advance.
After assembling with a porous concrete plate, open
Fill with more ordinary concrete and allow them to harden
A block for ecosystem preservation characterized by being embodied. 3. A block for ecosystem preservation, wherein a porous concrete plate is attached to each outer surface of a three-dimensionally formed ordinary concrete block. 4. A large number of ecosystem preservation blocks according to any one of claims 1 to 3 are laid from a riverbed or from a riverbed to a slope, and the respective blocks are interconnected to each other to form an underwater part. A method for constructing an ecosystem preservation block, characterized by providing a habitat for aquatic organisms and growing plants on a vegetation base above the water.